A design pattern is the re-usable form of a solution to a design problem. The idea was introduced by the architect Christopher Alexander and has been adapted...

In software engineering, a design pattern describes a relatively small, well-defined aspect (i.e. functionality) of a computer program in terms of how...

Design Patterns: Elements of Reusable Object-Oriented Software (1994) is a software engineering book describing software design patterns. The book was...

A visitor pattern is a software design pattern that separates the algorithm from the object structure. Because of this separation, new operations can be...

Factory Method design pattern is one of twenty-three well-known design patterns that describe how to solve recurring design problems to design flexible and...

engineering, the blackboard pattern is a behavioral design pattern that provides a computational framework for the design and implementation of systems...

A pattern is a regularity in the world, in human-made design, or in abstract ideas. As such, the elements of a pattern repeat in a predictable manner....

engineering, the adapter pattern is a software design pattern (also known as wrapper, an alternative naming shared with the decorator pattern) that allows the...

computer programming, the strategy pattern (also known as the policy pattern) is a behavioral software design pattern that enables selecting an algorithm...

In software design and engineering, the observer pattern is a software design pattern in which an object, named the subject, maintains a list of its dependents...

The facade pattern (also spelled façade) is a software-design pattern commonly used in object-oriented programming. Analogous to a facade in architecture...

pattern is a software design pattern that restricts the instantiation of a class to a singular instance. One of the well-known "Gang of Four" design patterns...

In computer programming, the proxy pattern is a software design pattern. A proxy, in its most general form, is a class functioning as an interface to something...

In object-oriented programming, the decorator pattern is a design pattern that allows behavior to be added to an individual object, dynamically, without...

Interaction design patterns are design patterns applied in the context human-computer interaction, describing common designs for graphical user interfaces...

A dark pattern (also known as a "deceptive design pattern") is "a user interface that has been carefully crafted to trick users into doing things, such...

engineering, behavioral design patterns are design patterns that identify common communication patterns among objects. By doing so, these patterns increase flexibility...

mediator design pattern is one of the twenty-three well-known design patterns that describe how to solve recurring design problems to design flexible...

The builder pattern is a design pattern designed to provide a flexible solution to various object creation problems in object-oriented programming. The...

In software engineering, the composite pattern is a partitioning design pattern. The composite pattern describes a group of objects that are treated the...

Paisley or paisley pattern is an ornamental textile design using the boteh (Persian: بته) or buta, a teardrop-shaped motif with a curved upper end. Of...

reactor software design pattern is an event handling strategy that can respond to many potential service requests concurrently. The pattern's key component...

Circuit breaker is a design pattern used in software development. It is used to detect failures and encapsulates the logic of preventing a failure from...

a design pattern – in Design Patterns there is no "factory pattern", but instead two patterns (factory method pattern and abstract factory pattern) that...

template method is one of the behavioral design patterns identified by Gamma et al. in the book Design Patterns. The template method is a method in a superclass...

The abstract factory pattern in software engineering is a design pattern that provides a way to create families of related objects without imposing their...

In software engineering, creational design patterns are design patterns that deal with object creation mechanisms, trying to create objects in a manner...

state pattern is a behavioral software design pattern that allows an object to alter its behavior when its internal state changes. This pattern is close...

Model–view–controller (MVC) is a software design pattern commonly used for developing user interfaces that divides the related program logic into three...

with a specific DBMS (the implementation of the DAO). Although this design pattern is applicable to most programming languages, most software with persistence...